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Hydrocarbons process liquid production modifying catalyzer and modification method thereof

A catalyst and upgrading technology, used in physical/chemical process catalysts, chemical instruments and methods, petroleum industry, etc., can solve the problems of complex operation and high cost, reduce heavy aromatics, reduce tail gas pollution, reduce dry point and The effect of gum content

Active Publication Date: 2009-10-14
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the addition of toluene to the reformed product in this method, the unreacted toluene in the product needs to be separated and recycled again, which makes the follow-up operation more complicated and the cost is higher

Method used

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  • Hydrocarbons process liquid production modifying catalyzer and modification method thereof
  • Hydrocarbons process liquid production modifying catalyzer and modification method thereof
  • Hydrocarbons process liquid production modifying catalyzer and modification method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0016] The preparation method of the catalyst provided by the invention comprises impregnating the molded high-temperature-resistant inorganic oxide with a solution containing an iridium compound, and performing water chlorine activation and reduction after drying.

[0017] The molding of the high temperature-resistant inorganic oxide can adopt conventional extrusion molding or drop ball molding.

[0018] The extrusion molding method is to knead the powdery high-temperature-resistant inorganic oxide or its precursor with an appropriate amount of water and a peptizer. The peptizer is generally an acid. Extrude the obtained product after kneading evenly, dry and roast to obtain the shaped carrier.

[0019] The method for forming the drop ball is: adding an appropriate amount of water to the powdery high-temperature-resistant inorganic oxide or its precursor, so that the liquid / solid mass ratio is 1.0-3.0. Stir to make it slurry, then add acid to acidify, add urea accounting for...

example 1

[0031] Preparation of the catalyst of the present invention.

[0032] (1) Preparation of γ-alumina carrier.

[0033] Take 100 grams of aluminum hydroxide powder (manufactured by Condea, brand SB) and add 200 grams of deionized water, and stir to make it slurry. Add the nitric acid that volume ratio is 1: 1 by the amount of every 100 grams of SB powder 7.5 milliliters, add the concentration of 30 grams of urea and 10.0 grams simultaneously and be the hydrochloric acid solution of 36.5 mass %, stir 1 hour, add 30 grams of kerosene and stir 1 hour, The drop ball is formed in the oil ammonia column. The wet bulb was solidified in ammonia water with a concentration of 6.0% by mass for 1 hour, then filtered, washed 2 to 3 times with deionized water, dried at 60°C for 6 hours, and dried at 120°C for 10 hours, and then dried in dry air at a ratio of 700:1 The gas / solid volume ratio was calcined at 600° C. for 4 hours to obtain the gamma-alumina carrier.

[0034] (2) Preparation of ...

example 2

[0037] Catalyst B was prepared according to the method of Example 1, except that the impregnating liquid used contained 0.3% by mass of Ir, and the active component content of catalyst B was shown in Table 1.

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Abstract

A hydrocarbon processing liquid product upgrading catalyst, comprising iridium, halogen and high-temperature resistant inorganic oxide, the iridium content calculated on the basis of high-temperature resistant inorganic oxide is 0.1-5.0% by mass, and the halogen content is 0.01-3.0% by mass. The catalyst is used for the upgrading of naphtha products, which can increase the benzene, toluene and xylene in the upgraded product, improve the conversion rate of ethylbenzene, and the amount of carbon deposition in the reaction process is extremely low.

Description

technical field [0001] The invention relates to a hydrocarbon upgrading catalyst, a preparation method and a upgrading method. Specifically, it is a hydrocarbon processing liquid product upgrading catalyst, a preparation method and a upgrading method. Background technique [0002] The processing process using naphtha as raw material mainly includes catalytic reforming and ethylene cracking process. The catalytic reforming process is to convert straight-run naphtha into high-octane gasoline or reformed products rich in aromatics through catalytic reaction. At the same time, it produces abundant and cheap hydrogen. In the catalytic reforming process, the naphtha raw material rich in paraffins and naphthenes is contacted with the reforming catalyst under certain conditions, and the following reactions mainly occur: dehydrogenation of naphthenes into aromatics, dehydrocyclization of paraffins Become aromatics, isomerization of paraffins and naphthenes, hydrocracking of paraffi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/13B01J27/10B01J21/04C10G35/085
Inventor 蔡迎春马爱增潘锦程周怡然
Owner CHINA PETROLEUM & CHEM CORP
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